<template>
  <div class="loginContainer">
    <div class="loginBox">
      <div class="image_box">
        <img src="../assets/logo.png" />
      </div>
      <el-form
        :model="loginForm"
        :rules="loginFormRules"
        ref="loginFormRef"
        label-width="0"
        class="login_form"
      >
        <el-form-item prop="username">
          <el-input
            v-model="loginForm.username"
            prefix-icon="el-icon-user-solid"
          ></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input
            v-model="loginForm.password"
            :type="passwordType"
            ref="password"
            prefix-icon="el-icon-s-goods"
          ></el-input>
          <i
            class="iconfont show-pwd"
            @click="showPwd"
            :class="
              passwordType === 'password'
                ? 'icon-yanjing_xianshi_o'
                : 'icon-yanjing_yincang_o'
            "
          ></i>
        </el-form-item>
        <el-form-item class="bts">
          <el-button type="primary" @click="login">登陆</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>
<script>
export default {
  name: 'login',
  data() {
    return {
      passwordType: 'password',
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      loginFormRules: {
        username: [
          { required: true, message: '请输入登录名称', trigger: 'blur' },
          { min: 3, max: 5, message: '长度在 3 到 5 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入登录密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    resetLoginForm() {
      this.$refs.loginFormRef.resetFields()
    },
    login() {
      this.$refs.loginFormRef.validate(async (valid) => {
        if (!valid) return
        const { data: res } = await this.$http.post('login', this.loginForm)
        if (res.meta.status !== 200) this.$message.error('登录失败')
        this.$message.success('登录成功')
        // 将登录成功之后的token保存在sessionStorage中
        window.sessionStorage.setItem('token', res.data.token)
        // 编程式导航路由
        this.$router.push('/home')
      })
    }
  }
}
</script>
<style lang="less" scoped>
.show-pwd {
  position: absolute;
  right: 10px;
}
.loginContainer {
  background-color: #2b4b6b;
  height: 100%;
}
.loginBox {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  .image_box {
    width: 130px;
    height: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;
    box-shadow: 0 0 10px 0;
    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;
    }
  }
}
.bts {
  display: flex;
  justify-content: flex-end;
}
.login_form {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}
</style>
